FR2398202A1 - Soupape de commande pour machine agricole - Google Patents
Soupape de commande pour machine agricoleInfo
- Publication number
- FR2398202A1 FR2398202A1 FR7821259A FR7821259A FR2398202A1 FR 2398202 A1 FR2398202 A1 FR 2398202A1 FR 7821259 A FR7821259 A FR 7821259A FR 7821259 A FR7821259 A FR 7821259A FR 2398202 A1 FR2398202 A1 FR 2398202A1
- Authority
- FR
- France
- Prior art keywords
- chamber
- control valve
- port
- agricultural machine
- orifice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Lifting Devices For Agricultural Implements (AREA)
Abstract
Soupape de commande permettant de commander hydrauliquement les opérations de levage d'une machine de travail telle qu'une machine rotative, une charrue, etc., reliée à une machine motrice agricole telle qu'un tracteur. La soupape d'inversion étant réglée dans sa position ascendante, l'orifice 28 est fermé tandis que l'orifice 29 est ouvert et la chambre 10 communique avec la chambre 12 à travers l'orifice 11, de sorte que l'huile hydraulique dans la chambre 10 circule à travers l'orifice 11, la chambre 12, le passage 24, l'orifice 29, la chambre 32 et le passage 25 de maniere à entrer dans la chambre 31, la pression dans cette chambre 31 étant ainsi rendue égale à celle dans la chambre 30. Application aux machines agricoles.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8697977A JPS5422070A (en) | 1977-07-19 | 1977-07-19 | Control valve for machine |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2398202A1 true FR2398202A1 (fr) | 1979-02-16 |
FR2398202B1 FR2398202B1 (fr) | 1983-12-16 |
Family
ID=13901980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7821259A Granted FR2398202A1 (fr) | 1977-07-19 | 1978-07-18 | Soupape de commande pour machine agricole |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5422070A (fr) |
CA (1) | CA1120827A (fr) |
DE (1) | DE2831515C2 (fr) |
FR (1) | FR2398202A1 (fr) |
GB (1) | GB2001516B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5648982B2 (fr) * | 1973-10-19 | 1981-11-19 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2723854A1 (de) * | 1976-05-26 | 1977-12-08 | Borg Warner | Lasttragendes stroemungsmittelsystem |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3035610A (en) * | 1959-09-10 | 1962-05-22 | Oliver Corp | Control valve for hydraulic actuator |
JPS4825199U (fr) * | 1971-07-31 | 1973-03-24 | ||
DE2449599A1 (de) * | 1974-10-18 | 1976-04-29 | Bosch Gmbh Robert | Wegeventil |
-
1977
- 1977-07-19 JP JP8697977A patent/JPS5422070A/ja active Granted
-
1978
- 1978-07-17 CA CA000307479A patent/CA1120827A/fr not_active Expired
- 1978-07-18 FR FR7821259A patent/FR2398202A1/fr active Granted
- 1978-07-18 GB GB7830245A patent/GB2001516B/en not_active Expired
- 1978-07-18 DE DE19782831515 patent/DE2831515C2/de not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2723854A1 (de) * | 1976-05-26 | 1977-12-08 | Borg Warner | Lasttragendes stroemungsmittelsystem |
US4088151A (en) * | 1976-05-26 | 1978-05-09 | Borg-Warner Corporation | Cylinder locking apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS5422070A (en) | 1979-02-19 |
JPS6257843B2 (fr) | 1987-12-03 |
FR2398202B1 (fr) | 1983-12-16 |
DE2831515C2 (de) | 1986-11-06 |
DE2831515A1 (de) | 1979-02-22 |
GB2001516A (en) | 1979-02-07 |
CA1120827A (fr) | 1982-03-30 |
GB2001516B (en) | 1982-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |